Railway-track structure



Jan. 8 1924.

C. BURTON RAILWAYv- TRACK STRUCTURE Filed Sept. 13 1925 2 Sheets-Sheetl.

Jan.s,1924. 1,480,370

C. BURTON RAILWAY TRACK STRUCTURE Filed Sept. l5 1923 2 Sheets-Sheet 2@etented den. 8, i324.

RAILWAY-TRACK STRUCTURE.

Application nled September 13, 1923. Serial No. 652,524.

steel alloy other than manganese steel scf cured in position railsections.

@ne object of the present invention is to provide a track structure ofthe above type composed of rolled grooved rails having their inner endsconnected by a body of cast ferrous metal and a hardened steel Wearplate secured in position between the inner ends of the rails tocomplete the struct-ure, said wear plate being composed of a suitable atthe Yintersection of the 'steel composition capable of beingsuccessfully built up by Welding by the deposit electrode or othersuitable welding process,

when the Wearing parte become worn underl the action of wheel traffic.

Another object of the present invention is `o provide a track structureot' the above ype composed oi' rolled grooved rails and iardened wearplates ci' other than manganese steel, in which the wheel flange groovesor i angeways have their floors tapered down towards Ithe extreme. endsto the normal dept-h of the groove in the connecting rail so as toprovide a tloor elevation through the intersection which will engage theflange of a valu passing through the intersection and raise the trendportion of the wheel above und free of the rail head, thereby preventingthe sho/gli due to the treads ot the Wheels passing over zhe interruptedhead surfaces, and the d ublc weer thereon duc to the -passage oi'trains in two directions over the ends o1" the rails.

.Il turiher object lo provide a railway track strut-ture composed ol thenovel constriuilon, design and combination of parts here iaftcrdescribed, and illustrated in the accompanying drawings.

ln the drawings, Figure -l, is a plan or" a switch frog constructed inaccordance with this invention. f

Figure 2 is a side elevation thereof.

Figure 3 is a plan of a crossing structure constructed in accordancewith this invention.

Figure #l is a side elevation thereof.

Figure 5 is an enlarged sect-ion through one ofthe rails, forming thecrossing of Figures 3 and l, showing the position of a car wheel passingthereover'.

Referring more particularly to the drawings, the letter Ardesignates theseveral rail sections which are Ijoined to make the track structures bycenter or wear plates 2 and cast metal connecting portions 3. The railsA are of the rolled grooved rail type and comprise a base flange-l, web5, head 6 and a guard flange T. The head 6 and guard flange 7 areseparated -from each other by a groove or langeway tl, in which the`flange of a car Wheel is adapted to travel.

ln either the frog or crossing track structure, the groove 8 is providedwith an elevated floor at the points oi intersection. In the presentembodiment of the invention the tioors of the grooves S are showntapered down gradually towards the cxtreme ends 'of the normal depth ofthe groove 4ol" the connecting rail.

lt will be readily understood that, as

clearly illustrated in Figure 5, a car Wheel u nen approaching andpassing through an intersection in a track structure constructed inaccordance withthis invention, will have its tread elevated above theface of the head of the rail, due to theelevated floor 10 of the groove8. lith the tread o't' the wheel thus elevated the shock and wear, dueto the wheel tread passing over the interrupted rail heads atjtheintersections, is entirely eliminated, and consequently the life of thetrack and wheel'are great-ly lengthened.

In the straight crossings illustrated in Figures l and 4 the guardflange 7 has its top face on the same plane with thetop face of the headso as to form a smooth crossing and prevent unnecessary shock to trafficpassing ther-cover. The dotted line l2, in Figure 5, indicates the topof the guard lila-nge in straight crossings.

The wear plates 2 are preferably made oli alloy steel hardened by heattreatment, such for example as chrome steel or nickel steel or otherknown alloy steels which can be hardened by heat treatment andy whichare capable ot being built up, when Worn, by Welding or electricdeposition of metal to their Worn surfaces Without removal from thetrack structure. Wear plates in frogs and crossings have been built ofmanganese steelWhich is more durable than the ordinary rail steel. Butmanganese steel cannot be successfully built upon its Worn surfacesWhile in place in the track structure by Welding or electric depositionof metal on the Worn surfaces. Consequently such Wear plates havegenerally been bolted or otherwise detachably mounted in the structure.

With an alloy steel such as i have described, the Wear plates can. bepermanently mounted in place, either by the use .of a body of cast metal3 or by bolts or other fastening means.

While I have shown only two embodi ments of my invention, it vvill beunderstood that various other embodiments may be made within the scopeof the appended claims.

l.. A railway track structure comprising, in combination, intersectingrails of the grooved rail type, and a hardened steel center Wear platesecured at the intersection of said rails, said rails and said platebeing provided with wheel ange grooves, said grooves having elevatedfloors tapered down towards the extreme ends ito the normal depth of thegroove in the connecting rail so as to provide a floor elevation throughthe intersection, which will engage the iiange oi a wheel passingthrough the intersection and raise thev tread portion of the Wheel abovethe rail head while passing over nascere the intersection, thuspreventing the shock due to the treads of the Wheels passing over theinterrupted head surfaces, and a :ferrous metal base Cast around saidrails at their intersection after they are assembled te se' cure said.rails together.

2. A railway track structure comprising, in combination, intersectingrolled steel rails of the grooved rail type, having a tiangeway for thereception of a Wheel ilange, Said rails being arranged with their innerends spaced an appreciabie distance apart, a body of ferrous metal castaround the innerends of said rails to secure them together, an

alloy steel center Wear plate'cured in po-4 sition in said cast metalportion, and connecting said rails, said plate being provided withflangeways connecting with the flangen Ways of said rails and beingcharacterized by being composed of an alloy capable of beingsuccessfully built up by Weiding b the deposit electrode or othersuitable wel ing process when the Wearing parts become Worn under theaction of wheel traffic, and said angeways having their floors tapered.'

down towards the extreme ends to the noi'-,

maly depth of the groove in the connecting railf so as to provide afioor elevation through the intersection which will engage the iiange ofa Wheel passing through-the intersection and raise the, tread porti-onof: the Wheel abovesthe heads of the structure While passing over theintersection.

In testimony whereof, l have hereunto set my hand.

CARROLL BURTON

